velocity根据模板导出word并下载工具方法

<!-- velocity -->
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-tools</artifactId>
</dependency>

/**
* 导出word并下载
*
* @author wangdongdong
*
* @param response
* @param request
* @param params 传入的参数map
* @param fileName  生成的文件名
* @param templateFileName   模板文件名
*/
public static void exportToWordDownload(HttpServletResponse response, HttpServletRequest request, Map<String, Object> params, String fileName, String templateFileName) {

OutputStream outputStream = null;
try {

WebApplicationContext ctx = RequestContextUtils.getWebApplicationContext(request);
String webRoot = ctx.getServletContext().getRealPath("/");

// 获取绝对路径
String filePath = webRoot + File.separator + "WEB-INF" + File.separator + "template" + File.separator;
outputStream = response.getOutputStream();
response.reset();
// 防止文件名乱码
String agent = request.getHeader("USER-AGENT");
if (agent.indexOf("MSIE") >= 0) {
URLCodec codec = new URLCodec();
fileName = codec.encode(fileName, "UTF-8");
fileName = StringUtils.replace(fileName, "+", "%20");
} else {
fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
}

response.setHeader("Content-disposition", "attachment; filename=\"" + fileName + "\"");
response.setContentType("application/x-msdownload");

createDocAndDownload(params, filePath, templateFileName, outputStream);

} catch (Exception ex) {
logger.error(ex.getMessage());
} finally {
IOUtils.closeQuietly(outputStream);
}
}

/**
* 生成word并下载
* @param dataMap
* @param templatePath
* @param templateFileName
* @param os
* @throws Exception
*/
private static void createDocAndDownload(Map<String, Object> dataMap, String templatePath, String templateFileName, OutputStream os)
throws Exception {
VelocityContext velocityContext = new VelocityContext();
for (String key : dataMap.keySet()) {
velocityContext.put(key, dataMap.get(key));
}
// 设置路径参数
Properties properties = new Properties();
// 这是模板所在路径
properties.setProperty(VelocityEngine.FILE_RESOURCE_LOADER_PATH, templatePath);
VelocityEngine velocityEngine = new VelocityEngine();
// 初始化
velocityEngine.init(properties);
velocityEngine.init();
// 加载模板
Template template = velocityEngine.getTemplate(templateFileName, "UTF-8");
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "utf-8"));
template.merge(velocityContext, writer);
writer.flush();
}

exportToWordDownload()

生成如下文件：